Molds made with Mold Star® will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Cured Mold Star® rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys.

Note: THI-VEX® is NOT compatible with Mold Star® rubbers.

Note: This product will not work with modeling clays containing sulfur under any circumstances.